Acetyl chloride → HCID 57908090, compound

Participants

Reaction Steps

tert-Butyl 2-(aminomethyl)-4-oxo-1,3,8-triazaspiro[4.5]dec-1-ene-8-carboxylate (1E) in CH2Cl2 (150 mg, 0.05 M), prepared by the procedure of Example 1, was added Et3N and acetyl chloride at −45° C. The reaction was complete after 20 minutes at −30° C. as determined by LCMS analysis, and then partitioned between ethyl acetate and water. The organics were subsequently washed with NaHCO3 and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was passed thorough a pad of silica to afford the tert-butyl 2-(acetamidomethyl)-4-oxo-1,3,8-triazaspiro[4.5]dec-1-ene-8-carboxylate (2A, 87%).

Provenance & Evidence